Clinical effectiveness of ultrasound-guided dual transversus abdominis plane block for postoperative analgesia in open abdominal aortic surgery patients: The randomised, double-blind ETAP trial. Issue 9 (September 2020) - Chenet, Julien; Dupont, Elodie; Salomon du Mont, Lucie; Levy, Thomas; Salignon, Vivien; Puyraveau, Marc; Pili-Floury, Sebastien; Samain, Emmanuel; Besch, Guillaume